Locking and latching means for sliding panel doors



M. TUCKER April 13, 1965 LOCKING AND LATCHING MEANS FOR SLIDING PANELDOORS Filed June 24, 1963 2 Sheets-Sheet 1 M. TUCKER April 13, 1965LOCKING AND LATCHING MEANS FOR SLIDING PANEL DOORS 2 Sheets-Sheet 2 mmm;

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Filed June 24, 1963 FIG.9

INVENTOR MORTON TUCKER www ATTORNEY ...nel L United States Patent O3,177,687 LOCKING AND LATCHING MEANS FR SLIDING PANEL DOORS MortonTucker, 1395 E. 11th Ave., Hialeah, Fla. Filed June 24, 1963, Ser. No.239,799 6 Claims. (Cl. 70-97) This invention relates to a latch devicefor sliding doors of the type generally known as sliding glass paneldoors wherein the glass panel is encompassed by an extruded aluminumframe that is movable in a wall opening to be latched and unlatched atthe end of the opening.

The device comprises a leading jamb rail for the door` wherein isdisposed the latch mechanism and with the latch mechanism embodying botha iinger turn knob and also a cylinder lock mechanism for moving a latchhook and with the cylinder being key operated from the outside of thedoor and with the latch hook being activated to a spring biased positionto override a keeper carried by the main frame disposed in the dooropening. The invention further contemplates a casting that is fittedinto an elongated opening and having fixed mounting therein by screwsthat pass through a handle device for sliding the door from the insidewhile the casting is provided with an elongated recess constituting afinger opening for shifting the door from the outside.

t Novel features of construction and operation of the device will bemore clearly apparent during the course of the following description,reference being had to the accompanying drawings wherein has beenillustrated a pre- FIGURE lis a perspective view of sliding doors of thef type that overlap each other and are mounted within a main framedisposed within a wall opening,

FIGURE 2 is a fragmentary section taken through the leading jamb memberof the door frame,

FIGURE 3 is a view taken substantially on line 3 3, looking in thedirection of the arrows and with the latch mechanism being shown` inelevation,

FIGURE 4 is a vertical section taken substantially on line 4 4 of FIGURE2,

FIGURE 5 is a detailed sectional view illustrating a connection betweenthe cylinder lock mechanism and the latch hook` and illustrating a slidelink,

FIGURE 6 is a View similar to FIGURE 2 but showing the latch `hook in adepressed position under the influence of a iinger knob, y

FIGURE 7 is a view similar to FIGURE 2 but illustrating the iinger knobin the release position with respect to the latch hook,

FIGURE 8 `is a side elevation of the leading jamb member of the doorshowing the nger knob in the release position of FIGURE 7, and

FIGURE 9 is a horizontal section taken on line 9-9 of FIGURE 4. t

Referring specifically to the drawings, there has been illustrated atubular extruded leading jamb member 5 that is provided with an inwardlyopening channel 6 formed -by side walls 7 and 8 and a vertical partition9. The side wall 8 is slotted at 10 for receiving a casting 11. Thecasting 11 is provided with an elongated finger recess 12. The upper andlower ends of the casting are provided with cylindrical studs 13 thatare apertured and threaded at 14 to receive screws 15 that pass throughapertures 16 formed in a base plate 17 carrying a handle 18 that isdisposed upon the wall 7 and with the wall being apertured to receivethe screws and whereby the handle and the casting will be securelymounted within the opening 19 of the jamb member 20.

3,177,687 Patented Apr. 13, 1965 ICC Cast integral with the castingrllare upper and lower rings or sockets 21. The sockets face in oppositedirections whereby the casting may be inverted for opposite ends of adoor structure. As shown in the drawings, the upper socket 21 receives alock cylinder 22, such lock cylinder having an outer tiange 23l and withthe cylinder being locked within the sockets by a split ring 24. Thecasting 11 is lianged at 25 to overlie the wall 8 and whereby thecasting will be clamped securely into the opening of the jamb memberunder the influence of the screws 15.

Fixed upon the cylinder 22 is a cylinder arm 26, preferably formed ofnylon and the arm 26 is held against turning with respect to thecylinder of the lock by screw 27. The arm 26 is provided with a stop lug28 that has abutting engagement with the adjacent stud 13 and whereby tolimit the upper movement of the cylinder arm. One end of the arm 26 ispivotally connected at 29 to a slip link 3l), the link embodying anupper section 31 and a lower section 32. The sections 31 and 32 areslidable with respect to each other and held against displacement by akey 33 (FIG. 6). The lower section 32 is pivotally connected at 34 to anarm` 35 of a latch hook `36. The latch hook 36 is pivotally mounted at37 upon aV stud 38 carried by the casting 11. The means for retainingthe arm 35 upon the pivot 34 and also the retaining meansV for the latchhook upon the stud 38 is by C-rings 39 and 46. The latch hook is biasedto a latching position by a spring 41 that is wrapped around the stud 38with its arms bearing against the pivot 34 and a stud 42 and with thestud also projecting outwardly from the casting 11. The cylinder arm islimited in its opposite turning position by abutment against a stud 43in which position, the latch hook is held in a release position.

Rotatable upon a stud V44, formed` integral with the cast ing l1 is apreferably nylon latch cam 45; The latch cam is disposed in overlyingrelation to the latch hook 35 and functions to release the latch hookfrom a downward position to a spring biased upward position. The latchcam is movable under the influence of a pin 46, extending into In theuse of the device, assuming that the cylinder 22 has been mounted in thesocket 21 at the upper part of the casting, the casting and theassociated mechanism with respect to the linkage and the latch hook isall slipped into the opening 10 of the side wall 8. The handle is thenassembled by passingscrews 15 into the studs 13. It being assumed ofcourse that the latch handle Sil has irst been engaged with the latchcam and then the parts fastened together, clamping the liange 25 to theplate 8 while the base plate 17 of the handle maintains the latchmechanisrn in mounted position and with the latch handle and associatedmechanism being held against separation. The latch hook 36 is disposedbehind an opening S1 that receives a keeper that is xed to the verticaljamb of the main frame member. The keeper riding over a beveledL end 36of the latch hook 36 and since the latch hook is biased upwardly by thespring 41, the keeper will be iirmly engaged behind the hook 36'. Whenthe lock is to be open from the outside, the key must be employed andthrough the slip linkage, the latch hook will be forced downwardly to arelease position. When the latch is to be engaged in a locked positionupon the inside of the door, the latch handle 5d is rotated to cause thecam 45 to bear against the upper marginal edge of the latch arm 35 androck the latch 36 downwardly to the position illus- 3) trated in FGURES6 and 7. In order to lock the door from the inside, the latch handle 50,is swung toa vertical position, permitting the springs 41 to swing thelatch hook upwardly and then, assuming that the door is to be openedfrom the outside, the key is employed, forcing the slip linkage 30downwardly, causing the latch hook to be released from the keeper. Themechanism is very simple although positive in its action and the casting1l. can be employed to mount the latchV mechanism at either end of thedoor. Instead of using a pull handle as shown in FIGURE 3, a cover platemay be employed to overlie the hub 48 of the latch handle Sil.

It is to be understood that the invention is not limited to the preciseconstruction shown, but that changes are contemplated as readily fallwithin the spirit of the invention as shall-be determined by the scopeof the subjoined claims.

I claim:

1. A. lock and latch mechanism for sliding glass panel doors of the typecomprising an extruded metallic frame having `a hollow leading jambmember, the forward wall of which is apertured for the passage of akeeper that is fixedly connected to a jamb member of a wall frame, anouter wall of theY door being slotted for the passage of a bodyportionof a lock and latch mountingmember, means for ixedly positioningthe mounting member into the jamb, studs formed upon the member and withcertain of thestuds constituting pivot posts, a latch hook pivotallysupported upon a lower post and biased to a latehing position with thekeeper, a cam plate pivotally supported upon a next adjacent post to bein parallel overlying engagement with the latch, a shaft connected tothe cam plate and extending through the inner side of the jamb,a crankarm fixed to an outer extended end ofthe shaft and whereby to rotate thecam plate to move the latch hook to and from a latchedposition withrespect to the keeper, the mount-v ing-member adjacent each endbeingprovided with socket forming` members, anupper socket constituting amounting guide for a key-actuated cylinder lock, a cylinder arm.

fixed to the inner end of the lock, the arm being connected to the latchhook, a second arm projecting from the cylinder armand also limiting theturning movement of the cylinder lock.

2. A lock and latch mechanism for sliding glass panel doors of the typewherein a metallic frame supports a glass panel and with the doorsmovable across a wall supported frame device, the door including a jambmember upon its leading edge and with the jamb member being of hollowextruded metal, one outer side of the jamb member being provided with anelongated slot, a lock and latch supporting member disposed within theslot and havinga marginal flange that overlies the opening, a pullhandle disposed upon the inner side of the frame and screw devicesextending through the pull device and into upper and lower lugs of themounting member and whereby to simultaneously clamp the mounting memberand the handle rigidly with respect to the jamb, the mounting memberbeingprovided with a plurality of horizontally disposed studs andwithseveral of the studs constituting pivotal posts, the mounting memberupon its outer side being provided with an elongated recess toconstitute a hand pull for the door, a hooked latchpivotally rotatableupon a lower stud and with the latchhaving a lower arm that is providedwith a hook that extends across an aperture formed in the leading sideOf, the jambV and whereby to engage and disengage a keeper that is fixedat an adjacent side of the wall frame, the hook latch being biased to alatchingposition byV a spring device, a cam plate rotatably supportedupon a stud next adjacent to the stud for the latch, a shaft extendingthrough the cam plate and locked thereto and with the shaft extendingthroughk an opening formed` in' the inner side wall of the jamb, a latchhandle xed upon the shaft and projecting beyond an opening formed in thebase of the pull handle and whereby to rotate the cam plate, the camplate being in vertical alignment with a leg portion of the latch deviceand whereby the latch device may be'forced downwardly to a releaseposition, the mounting member at its opposite end portions beingprovidedA with sockets, an upper socket adapted to re-V ceivea keyactuated cylinder lock that extends inwardlyV from the ilange of themounting member, a cylinder arm fixed to the inner end of the cylinderlock and with the cylinder arm beingv bifurcated and with oneA leg ofthe bifurcation being connected to an arm of the latch device andwhereby the latch device may be actuated to a release position by a key,the latch arm and the latch device being connected by a lost motionlink'and` whereby the latch device may be movable under the influenceoty the cam plate or the cylinder lock, the secondV arm of biasedupwardly by the springwhen the cam plate is` swungV to an upper positionandfwhereby. a keeper may engage through the aperture of the leading endwall to override the hooked end.

4. The structure according to claim Zwherein the lost motion linkage ispivotallyconnected to an upper arm of the latch and with the linkagebeing spaced from the` arm of the latch by a bushing.,

5. The structure according. to claim 2 wherein aange of the pull handleisrecessed-upon tsinnerside to re-V ceive apartof the'hub of theshaft'of the cam plate to constitute a bearing for the huby and tolprevent displace-V ment of the hub and the said shaft.

6. The structure according to ,claim 3 wherein the "biasing spring forthe hooked latch is wrappedabout the pivot` studs for the latchand withone end of the springY bearing V against alower-most post, the'upperendof. the spring bearing against a spacer bushing betweentthe upper armof the-latch device and the ilost motion linkage, the latchdevicebeingreleasable fromthe keeper by. the cylinder lock from theoutside of the door while the latchfdevicek may bereleased by the camplateandfthe shaft of: said Y cam plate from the'inside'ofrthe door.

References Cited-bythev Examiner UNITED STATES PATENTS 2,736,185 2/56Collar V, 70-100 2,990,208 6/61 Miner 70-97 3,041,097

ALBERT H. KAMPE, Primary Examiner, BOBBY R. GAY, Examiner,

6/.62 Eads 292f-1l3

1. A LOCK AND LATCH MECHANISM FOR SLIDING GLASS PANEL DOORS OF THE TYPECOMPRISING AN EXTRUDED METALLIC FRAME HAVING A HOLLOW LEADING JAMBMEMBER, THE FORWARD WALL OF WHICH IS APERTURED FOR THE PASSAGE OF AKEEPER THAT IS FIXEDLY CONNECTED TO A JAMB MEMBER OF A WALL FRAME, ANOUTER WALL OF THE DOOR BEING SLOTTED FOR THE PASSAGE OF A BODY PORTIONOF A LOCK AND A LATCH MOUNTING MEMBER, MEANS FOR FIXEDLY POSITIONING THEMOUNTING MEMBER INTO THE JAMB, STUDS FORMED UPON THE MEMBER AND WITHCERTAIN OF THE STUDS CONSTITUDING PIVOT POSTS, A LATCH HOOK PIVOTALLYSUPPORTED UPON A LOWER POST AND BIASED TO A LATCHING POSITION WITH THEKEEPER, A CAM PLATE PIVOTALLY SUPPORTED UPON A NEXT ADJACENT POST TO BEIN PARALLEL OVERLYING ENGAGEMENT WITH THE LATCH, A SHAFT CONNECTED TOTHE CAM PLATE AND EXTENDING THROUGH THE INNER SIDE OF THE JAMB, A CRANKARM FIXED TO AN OUTER EXTENDED END OF THE SHAFT AND WHEREBY TO ROTATETHE CAM PLATE TO MOVE THE LATCH HOOK TO AND FROM A LATCHED POSITION WITHRESPECT TO THE KEEPER, THE MOUNTING MEMBER ADJACENT EACH END BEINGPROVIDED WITH SOCKET FORMING MEMBERS, AN UPPER SOCKET CONSTITUTING AMOUNTING GUIDE FOR A KEY-ACTUATED CYLINDER LOCK, A CYLINDER ARM FIXED TOTHE INNER END OF THE LOCK, THE ARM BEING CONNECTED TO THE LATCH HOOK, ASECOND ARM PROJECTING FROM THE CYLINDER ARM AND ALSO LIMITING THETURNING MOVEMENT OF THE CYLINDER LOCK.